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Exercício 51 – (UDESC, 2018) A soma de todas as raízes reais da função f(x) = \text{cotg}^2(x) - \frac{5}{4}\text{sen}^2(x) + 2 pertencentes ao intervalo [\frac{\theta}{2}, 3\theta] é igual a:

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A productive system, integrated by computer and mobile devices, interconnected to the internet or intranet, which enables programming, management, control, cooperation, and interaction with the productive system from anywhere in the world.

","

What is the definition of Industry 4.0?

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Qual das alternativas a seguir apresenta uma característica da TI nas organizações na década de 1990?

",[63,85,92,100],{"_16":17,"_18":17,"_19":129,"_21":130,"_45":17,"_46":146,"_61":147},"b56c1be7-e315-49e5-91f0-7d338d2a9741",[131,134,137,140,143],{"_19":132,"_25":26,"_27":133},"f65dea3e-d1af-447b-bb8c-7bbba4b8467f","Primeira.",{"_19":135,"_25":31,"_27":136},"2f97f444-7eb8-41f3-a245-91477b141c3f","Segunda.",{"_19":138,"_25":35,"_27":139},"683d67e4-52b1-45b7-8eb9-8d68e57d32c5","Terceira.",{"_19":141,"_25":39,"_27":142},"e8ee22ce-93ee-428c-b741-7e868606106a","Quarta.",{"_19":144,"_25":43,"_27":145},"d3a13516-5d77-4d58-b704-1b8cb1d1980d","Quinta.","

A utilização da eletricidade se deu em qual das Revoluções Industriais pelas quais a sociedade passou?

",[63,85,92,100],{"_16":149,"_18":17,"_19":150,"_21":151,"_45":17,"_46":60,"_61":153},"352dcbb1-6897-43de-a8a6-5cc31b51f078","bc35fbbb-4320-46c3-a2e5-01c1337ae617",[152],{"_19":149,"_25":26,"_27":59},[63,85,92,100],[63,85,92,100],"tagsTree",[157],{"_19":93,"_65":94,"_67":95,"_69":70,"_71":-5,"_73":96,"_75":96,"_76":97,"_84":95,"_158":159},"children",[160],{"_19":72,"_65":101,"_67":102,"_69":70,"_71":93,"_73":103,"_75":103,"_76":104,"_84":107,"_158":161},[162],{"_19":64,"_65":66,"_67":68,"_69":70,"_71":72,"_73":74,"_75":74,"_76":77,"_84":68,"_158":163},[164],{"_19":86,"_65":87,"_67":88,"_69":70,"_71":64,"_73":89,"_75":89,"_76":90,"_84":88,"_158":165},[],"actionData","errors"]

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